baden



NITED STATES ATENT' FFICEQ EUGEN BAUMANN, OF FREIBURG, BADEN, ASSIGNOR TO FARBENFABRIKEN, VORMALS FR. BAYER & 00., OF EL BERFELD, GERMANY.

SUI=PHUR COMPOUND.-

SPEGIFIGA'IION forming part of Letters Patent No. 396,526, dated January 22, 188.

Application filed November 22; 1888. Serial No; 291,582: (No spe'cimeusi) To all whom it may concern:

Be it known that I, EUGEN BAUMANN, a subject of the Emperor of Germany, residing at Freiburg, Grand Duchy of Baden, Germany,

have discovered a new and useful. Improve ment in the Manufacture of a new Pharma' ceutical Product, of which the following is a specification.

My invention relates to the manufacture of to a new pharmaceutical product with soporific properties, and the chemical name of which is diethylsulphonemethylethylmethane.

I have found that 1nethylethylketone re on, x onion, Methyl ethylketone.

After some hours the reaction is completed, water is added, and the new mercaptol separates as an oil, which, dried with calcium chloride, distills at 1 98 to 203, and which has the following chemical constitution,

and the chemical name (lithiodiethylmethyl- 3 5 ethylmethane.

This new mereaptol, which is a colorless oil of an unpleasant odor, can be easily oxidized with permanganate to a new sulphone,

which has the following constitution,

i i S it :c.u sci 2 5 :e 2 s b h and "the chemical name of which is diethylsulphonemethylethylmetlIanc,

One part of the mercaptol is treated with a solution of permanganate under addition of an acid until the permanganate is no longer discolored. The solution is then heated to boiling, filtered, and evaporates.

The new produ ct crystallizes in silvery gleam c c u s,

Ethylsulphohydrate.

the following equation:

CH /SC.H crI:(1H, scZH, t H20 Dithiodiethylmethylethylketone.

ing scales, melting at '7 6. It is sparingly soluble in cold water, easily in hot water, ether, alcohol, and benzene. It melts in boiling water, and has no smell, but aweak, bitter taste.

Having thus described my invention, that which I claim as new, and desire to secure by Letters Patent, is-

The product herein described, being a new sulphonc, which has the chemical name diethylsulphon emethylethylmethane, melting at 7 (3, crystallizin g in silvery gleaming scales, diffieultly soluble in cold water,"easily in ether, alcohol, and benzene, being without smell, but of a weak, bitter taste, and melting in boiling water, substantially as described.

In testimony whereof I have signed my name in presence of two subscribing witnesses.

EUGEN BAUMANN.

'it-ncsses:

V. PAUL KRASKE,

Professor ofSargc/ri Freiburg. MAX SOHOTTELIUS, Y

Professor of llfedicine, Freiburgi 

